Inhaler



(No Model.)

. L.. w.;NEv1Us.

INHALER.

N0. 279,265. Patented June 12,1883.

wirzcdfews fave/atom flttorney..

N. PETERS. Phowullmgnpher, Washington. D. C.

. closed.

UNITED. ST TES Lanna w. NEVIUS,

PATENT OFFICE.

OF TOLEDO, OHIO.

INHALER.

SPECIFICATION forming part of Letters Patent No. 279,265, dated June 12,1883.

. Application filed May 3, 1883.

To allwhom it may concern Be it known that I, LAIRD W. NEvIUs, a citizenof the United States, residing at Toledo, county of Lucas, and State ofOhio, have invented a new and useful Improvement in Gas- Inhalers, ofwhich the following in a specification.

The inhalers now in use have the exhalingvalve on the upper part ofthe-mouthpiece or on the inhaling-pipe, so that the gas used by apatient is discharged in an upward direction. This exposes the operatorto the effects of the impure gas and renders its administra tion in acertain degree injurious to health.

The object of my invention is to provide a simple and effective inhalerfree from this ob je'ction, and one that will have the additionaladvantage of being'held to the mouth and operated up on by a singlehand, leaving the other free for instant usewhen a sufficient quantityof gas has been administered. I secure these advantages by combiningwith the mouth-piece of an inhaler an exhaling and inhaling tube havingsuitable valves for the inspiration and expiration of the breath an dgas, the exhalingtube being so placed upon the mouth-piece as to projecthorizontally therefrom, and, by means.

of the exhaling-valve at its end, securing, with each expiration of thebreath, the discharge of the gas in a line, as near as possible, to theline of the breath from the mouth. The inhaling-tube is provided with aslide-valve having a rubber seat, said valve acting by pressure upon itshead, opening thereby, and closing by means of a rubber or spiral springattached to the valve-slide and fitting over the inhaling-tube.

Figure 1 is a sectional view of my inhaler. Fig. 2 is a cross-section ofinhaling-pipe, drawn upon line 40 in Fig. 1, showing slide-valve Fig. 3is a cross-section of inhalingpipe, drawn upon line a in Fig. 1, showingslide-valve opened.

Similar figures of reference indicate corresponding parts,

In Fig. 1, 2 is the rubber mouthpiece, which fits close to the face; 3,the metallic collar or hood into which the mouth-piece fits; 4, thehorizontal, exhaling-tube 5, the exhaling-valve at the end of said tube;6, the cap, with central opening and perforated sides, fitting over (Nomodel.)

and protecting the exhaling-valve; 7, the inhaling-tube; 8, theinhaling-valve; 9, the slidevalve 5 10, a section of rubber tube fittedwithin the inhaling-pipe and forming the seat of. the slide-valve. i

In Fig. 2, 9 is the slide-valve in a closed position; 11, the opening;7, the inhaling-tube; 12, the rubber or spiral spring fitting around theinhaling-tube and held in position by the grooved shoulder 13 on the endof the valveslide. I

It will be seen by the construction shown that the gas, after beingused, will be discharged in a direction away from the operator, and thatthe inhaler can readily be held and operated up on by one hand. Bytaking it in either hand, the operators thumb or finger upon the head ofthe valve-slide, it is ready for the administration of gas. Pressureupon the slide will bring the opening 11 (shown in Fig. 2) in a linewith the inhaling-tube, as shown in Fig. 3, thus allowing a free flow ofgas from the receiver. \Vhensufficient gas has been administered,removing the pressure from the slide or dropping the inhaler instantlycuts off the supply of gas. In Fig. 3 the valve is shown as open.

By placing the exhalingw'alve in, the line of the breath from the mouthI not only secure protection to the operator, but the best possibleaction upon the exhaling-valve by direct pressure with each expirationof the gas, said pressure at the same instant closing the inhaling-valvelocated immediately below it.

The exhalin g and inhaling tubes form a junction at the neck of themouth-piece, which they enter in the form of a single pipe.

The mouth-piece should be of rubber or other flexible material, the hoodaround its neck, the inhaling and exhaling pipes, and slide-valve shouldbe of metal or other suitable material, and the exhaling and inhalingvalves of thin rubber. Sections of rubber tube properly fitted within.the pipes will form the necessary valve-seats.

The slide-valve operates through and across the inhaling-tube by meansof slots on either side of the tube, through which the slide moves. Atthe end of the slide opposite the head, where pressure is to be applied,is a grooved shoulder, into which the rubberring or spring is placed tohold it in proper position upon end, protected by a cap havinga centralspring, the tube. said pipe projecting horizontally from the neck Vhat Iclaim as my invention, and desire to of the mouth-piece, and forming ajunction I 5 secure by Letters Patent, iswith the inhaling-pipe near itsbase, substan- 5 1. In combination with the mouthpiece and tially as andfor the purposes set forth.

inhaling-pipe of a gas-inhaler, a horizontal In testimony whereof I havesigned mynanie cXhaling-tube with exhaling-valvc at its end, to thisspecification in the presence of two subsnbstantally as and for thepurposes set forth. scribing witnesses.

2. In combination with the mouth-piece of LAIRD XV. NEVIUS. IO aninhaler, an inhaling-pipewith a slidewalve "Witnesses:

having circnlarspring attachment thereon, and THOMAS D. GONE,

an exhaliug-pipc with. d1scharge-valve at its I QLAYION "W. EVERETT.

It is hereby certified that in Letters Patent No. 279,265, granted J nne12,1883, upon the application of Lnird W. Nevins, of Toledo, Ohio, foran improvement in Inhalers, an error appears requiring correction asfollows: the Word spring, in line 5 of the second clause of claim of theprinted specification thrilling at part of said patent, should readopening, and that the specification should be read with this .eorreetiontherein to make it conform with the record of the case in the PatentOffiee.

Signed, eountersigned, and sealed this 26th day of June, A. D. 1883.

[SEAL] M. L. JOSLYN,

Acting Secretary of the Interior. Gountersigned:

E. M. MARBLE,

Ommn'issirmm" of Patents.

